Steps to reproduce

1. Link in and call a .DLL from an ASP.NET application. Not notice the debug code (* See appendix a) you left in there 2 weeks ago while you were experimenting with something.
2. Recompile and run
3. Wonder why your webserver has stopped running.

Appendix a : Console.Readline();

Recommendations

I think the ASP.NET team need to implement MicroElves (TM) to run around inside my PC to press the enter key when I do dumb stuff like this.

Or I could look more carefully when I pick up 3 week old experimental code and start working on it again :)